The purpose of budget rules can be explored from the perspective of the expected results, obtained by their enforcement. On one hand, they are meant to improve or at least maintain certain levels of the budgetary deficit and public debt. On the other hand, they can help or limit the economic...

How should public debt be managed when uncertainty about the business cycle is widespread and debt levels are high, as in the aftermath of the last financial crisis? This paper analyzes optimal fiscal policy with ambiguity aversion and endogenous government spending. We show that, without...